KR940008192A - Permanent magnet rotor and its manufacturing apparatus - Google Patents

Permanent magnet rotor and its manufacturing apparatus Download PDF

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Publication number
KR940008192A
KR940008192A KR1019930017693A KR930017693A KR940008192A KR 940008192 A KR940008192 A KR 940008192A KR 1019930017693 A KR1019930017693 A KR 1019930017693A KR 930017693 A KR930017693 A KR 930017693A KR 940008192 A KR940008192 A KR 940008192A
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KR
South Korea
Prior art keywords
permanent magnet
rotor
punching
magnet piece
hole
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Application number
KR1019930017693A
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Korean (ko)
Other versions
KR0131752B1 (en
Inventor
도시히코 후타미
요시하루 시다
Original Assignee
사토 후미오
가부시키가이샤 도시바
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Publication of KR940008192A publication Critical patent/KR940008192A/en
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Publication of KR0131752B1 publication Critical patent/KR0131752B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/09—Magnetic cores comprising laminations characterised by being fastened by caulking

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

본 발명은 영구자석편의 자력특성을 손상하는 일없이 자석삽입구멍내에 영구자석편을 확실히 고정할 수 있는 영구자석로우터를 제공하는 것에 관한 것으로, 펀칭구멍(2)을 복수 펀칭한 펀칭강판(3)을 다수 적층하여 로우터철심(4)을 구성하고, 상기 펀칭구멍(2)으로 이루어지는 자석삽입구멍(5)에 단면원호형상의 영구자석편(6)을 끼워붙이고, 상기 로우터철심(4)을 구성하는 적어도 일부의 펀칭강판(3)의 펀칭구멍(2)에 영구자석편(6)을 누름고정하는 가늘고 긴 걸어맞춤돌기(13)를 설치한 것을 특징으로 한다.The present invention relates to a permanent magnet rotor capable of reliably fixing a permanent magnet piece in a magnet insertion hole without impairing the magnetic properties of the permanent magnet piece. The punched steel sheet (3) punched a plurality of punching holes (2). The rotor core 4 is formed by laminating a plurality of pieces, and the permanent magnet piece 6 having a circular arc shape is fitted into the magnet insertion hole 5 formed of the punching hole 2, and the rotor iron core 4 is constituted. It is characterized in that an elongate engaging protrusion 13 for pressing and holding the permanent magnet piece 6 is provided in the punching hole 2 of at least part of the punched steel sheet 3.

Description

영구자석로우터(rotor) 및 그 제조장치Permanent magnet rotor and its manufacturing apparatus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 의한 영구자석로우터의 한 실시예를 분해하여 나타낸 사시도.1 is an exploded perspective view showing an embodiment of a permanent magnet rotor according to the present invention.

제2도는 본 발명에 의한 영구 자석로우터의 한 실시예의 일부를 확대하여 나타낸 단면도.2 is an enlarged cross-sectional view of a portion of an embodiment of a permanent magnet rotor according to the present invention.

제3도는 본 발명의 걸어맞춤돌기와 영구자석편과의 걸어맞춤상태를 나타낸 종방향단면도.Figure 3 is a longitudinal cross-sectional view showing the engagement state of the engaging projection and the permanent magnet piece of the present invention.

Claims (8)

원형강판의 원주를 따라서 원호형상 개구부를 갖는 펀칭구멍을 복수 펀칭한 펀칭강판을 다수 적층하여 로우터철심을 구성하고, 상기 펀칭구멍으로 이루어지는 자석삽입구멍에 단면 원호상의 영구자석편을 끼워붙이도록 한 영구자석로우터에 있어서, 상기 펀칭강판의 상기 펀칭구멍의 외측부분은 상기 로우터 철심의외부둘레링부를 구성하고, 상기 펀칭강판의 상기 펀칭구멍의 내측부분은 상기 로우터 철심의 요크부를 구성하고, 상기 외부둘레링부와 요크부를 연결하는 연결부 근처의 상기 펀칭구멍의 코너부는 상기 자석삽입구멍의 내측에 돌출하는 가늘고 긴 걸어맞춤돌기를 갖고 이 걸어맞춤돌기는 상기 영구자석편과 걸어맞추어져서 상기 영구 자석편을 누름고정하고 있는 것을 특징으로 하는 영구자석로우터.A plurality of punched steel sheets punched with a plurality of punched holes having an arc-shaped opening along the circumference of the circular steel plate are laminated to form a rotor core, and a permanent magnet piece having a circular arc cross section inserted into a magnet insertion hole formed of the punched holes. In the magnetic rotor, an outer portion of the punching hole of the punched steel sheet constitutes an outer circumferential portion of the rotor iron core, an inner portion of the punched hole of the punched steel sheet constitutes a yoke portion of the rotor iron core, and the outer circumference The corner portion of the punching hole near the connection portion connecting the ring portion and the yoke portion has an elongated engagement protrusion projecting inside the magnet insertion hole, and the engagement protrusion is engaged with the permanent magnet piece to press the permanent magnet piece. Permanent magnet rotor, characterized in that fixed. 제1항에 있어서, 상기 영구자석편은 각부가 일부 깍아내어진 챔퍼링면을 갖고, 상기 걸어맞춤돌기는 상기 챔퍼링면에 있어서 상기 영구자석편과 걸어맞추어져 있는 것을 특징으로 하는 영구자석로우터.The permanent magnet rotor according to claim 1, wherein the permanent magnet piece has a chamfering surface in which each part is partially cut off, and the engaging protrusion is engaged with the permanent magnet piece in the chamfering surface. 제1항 또는 제2항에 있어서, 상기 걸어맞춤돌기는 상기 펀칭강판의 적층방향에 걸쳐서 간헐적으로 설치되어 있는 것을 특징으로 하는 영구자석로우터.The permanent magnet rotor according to claim 1 or 2, wherein the engaging projection is intermittently provided over the lamination direction of the punched steel sheet. 제1항 내지 제3항중 어느 한 항에 있어서, 상기 걸어맞춤돌기를 갖는 펀칭구멍의 코너부는 서로 중복되는 펀칭부분을 갖는 2개의 펀칭금형을 겹쳐찍어서 형성되고, 이 2개의 펀칭금형의 펀칭부분의 중복에 의하여 형성되는 펀칭구멍내면의 돌기는 상기 영구자석편의 로우터의 둘레방향의 단부와 상기 자석삽입구멍의 내면사이의 틈에 수용되어 있는 것을 특징으로 하는 영구자석로우터.The corner portion of the punching hole having the engaging projection is formed by overlapping two punching molds having punching portions overlapping each other, wherein the punching portions of the two punching molds are formed. The projection on the inner surface of the punching hole formed by the overlap is housed in a gap between the end portion in the circumferential direction of the rotor of the permanent magnet piece and the inner surface of the magnet insertion hole. 제1항 내지 제4항중 어느 한 항에 있어서, 상기 자석삽입구멍에 상기 영구자석편을 압입할때에 있어서, 상기 외부둘레링부가 상기 영구자석편에 의하여 소성적으로 팽창하기전에 상기걸어맞춤돌기가 항복 변형하도록 상기 펀칭구멍 및 걸어맞춤돌기의 치수 및 형상을 구성한 것을 특징으로 하는 영구자석로우터.The engaging projection according to any one of claims 1 to 4, wherein, when the permanent magnet piece is press-fitted into the magnet insertion hole, the engaging protrusion is formed before the outer circumferential ring portion is plastically inflated by the permanent magnet piece. Permanent magnet rotor, characterized in that the configuration and dimensions of the punching hole and the engaging projection so that the yield deformation. 제1항 내지 제5항중 어느 한 항에 있어서, 상기 펀칭강판은 코오킹부에 의하여 일체로 적층되고 이 코오킹부에 위치정합하는 로우터 철심의 부분에 소정깊이의 밸런스 구멍을 설치한 것을 특징으로 하는 영구자석로우터.The permanent punching according to any one of claims 1 to 5, wherein the punched steel sheet is integrally stacked by a caulking portion, and a balance hole having a predetermined depth is provided in a portion of the rotor iron core that is positioned and aligned with the caulking portion. Magnet rotor. 제1항 내지 제6항의 어느쪽인가에 있어서, 상기 각 펀칭구멍의 로우터의 반경방향 외측의 원호의 축중심점은 로우터의 반경방향 내측의원호의 축중심점에 대하여 그 펀칭구멍측의 로우터의 반경방향 외측에 위치하고, 상기 영구자석편의 다면형상은 상기 펀칭구멍에 대략 정합하도록 형성되어 있는 것을 특징으로 하는 영구자석로우터.7. A radially outer side of the rotor on the punching hole side according to any one of claims 1 to 6, wherein the axial center point of the arc on the radially outer side of the rotor of each punching hole is relative to the axial center point of the arc on the radially inner side of the rotor. The permanent magnet rotor, characterized in that the multi-sided shape of the permanent magnet piece is formed to substantially match the punching hole. 펀칭구멍을 갖는 펀칭강판을 다수 적층하여 로우터 철심을 구성하고, 이 로우터 철심의 상기 펀칭구멍으로 이루어지는 자석삽입구멍에 영구자석편을 삽입하도록 한 영구자석로우터의 제조장치에 있어서, 상기 영구자석로우터의 제조장치는 상기 로우터 철심을 누르는 제1누름수단과, 상기 제1 누름수단에 의하여 상기 로우터 철심을 압축한 상태에서 상기 영구자석편을 상기 자석삽입구멍에 압입하는 제2누름수단을 갖는 것을 특징으로 하는 영구자석로우터의 제조장치.In the apparatus for manufacturing a permanent magnet rotor, a plurality of punched steel sheets having a punching hole are laminated to form a rotor iron core, and a permanent magnet piece is inserted into a magnet insertion hole formed of the punching hole of the rotor iron core. The manufacturing apparatus has a first pressing means for pressing the rotor iron core and a second pressing means for pressing the permanent magnet piece into the magnet insertion hole in the state in which the rotor iron core is compressed by the first pressing means. Permanent magnet rotor manufacturing apparatus. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930017693A 1992-09-02 1993-09-02 Permanent magnetic rotor and producing apparatus of the same KR0131752B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP23486792 1992-09-02
JP92-234867 1992-09-02
JP5028269A JPH06133479A (en) 1992-09-02 1993-02-17 Permanent magnet rotor and manufacture thereof
JP93-028269 1993-02-17

Publications (2)

Publication Number Publication Date
KR940008192A true KR940008192A (en) 1994-04-29
KR0131752B1 KR0131752B1 (en) 1998-04-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930017693A KR0131752B1 (en) 1992-09-02 1993-09-02 Permanent magnetic rotor and producing apparatus of the same

Country Status (4)

Country Link
US (1) US5581140A (en)
JP (1) JPH06133479A (en)
KR (1) KR0131752B1 (en)
CN (1) CN1038170C (en)

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KR0131752B1 (en) 1998-04-20
CN1038170C (en) 1998-04-22

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